1.

Three test tubes A, B and C contain distilled water, an acidic solution and a basic solution respectively. When red litmus solution is used for testing these solutions, the observed colour changes respectively will be :(a) A - no change; B - becomes dark red; C - becomes blue(b) A - becomes light red; B - becomes blue; C - becomes red(c) A - becomes red; B - no change; C - becomes blue(d) A - becomes light red; B - becomes dark red; C - becomes blue

Answer»

Correct answer is (a) A - no change; B - becomes dark red; C - becomes blue

In distilled water neighter red litmus nor blue litmus paper, changes their colours.

In acidic medium - Red litmus paper becomes dark red.

In basic medium - Red litmus paper - becomes blue.



Discussion

No Comment Found

Related InterviewSolutions